The Mystery of Crop Circle (Prehistoric Electromagnetic disc)
M. Arulmani, V.R.Hema Latha, M. Phil · 2013
The history of Crop Circle research shows that Crop Circle is considered as a sizeable pattern created by the flattening of a crop such as Wheat, Barley, rye, logos, Discs, etc. The crop circles are substantially increased throughout the world and so far about nearly 10,000 cases of crop circles were reported by many countries till today.